Business Phone Systems Cloud Phone Systems 2

Question 1

What is a toll-free number prefix used in the United States?

Accepted Answer

800 (and 888, 877, 866, 855, 844, 833)

Answer

US toll-free numbers use the 800 series prefixes (800, 888, 877, 866, 855, 844, 833) where the called party pays for the call.

Question 2

What does 'uptime SLA' mean for a cloud phone provider?

Accepted Answer

A contractual guarantee of the percentage of time the service will be available

Answer

An uptime SLA (Service Level Agreement) contractually commits the provider to a specific availability percentage, typically 99.99%.

Question 3

What is WebRTC and how does it relate to cloud phone systems?

Accepted Answer

A browser technology that enables voice and video calling directly from a web browser without plugins

Answer

WebRTC allows real-time voice and video communication directly in web browsers, enabling browser-based softphone features in cloud systems.

Question 4

What is 'geographic redundancy' in a cloud phone system?

Accepted Answer

Running the service across multiple data centers in different locations so one failure doesn't cause an outage

Answer

Geographic redundancy ensures call processing continues if one data center fails by automatically failing over to another location.

Question 5

What is the purpose of an E911 service requirement for US cloud phone systems?

Accepted Answer

Routes emergency calls to the correct PSAP and provides location information to first responders

Answer

E911 (Enhanced 911) ensures that when a VoIP user dials 911, their location data is transmitted to the local Public Safety Answering Point.

Business Phone Systems Practice Test